WWTP Erlangen
ELOVAC®-P – Vacuum degassing of digested sludge
Goal
- Avoiding climate-damaging methane emissions
- Improving sludge dewatering and avoiding maintenance intensive struvite scaling
Scope of delivery and services
- Delivery, implementation, and commissioning of an ELOVAC®-P plant for vacuum degassing of digested sludge
Special features
- Capacity of the ELOVAC®-P plant: 20 m³/h digested sludge
- The option for direct dosing of MgCl2 solution for integrated and controlled MAP precipitation is included
General Data
Client
EBE Erlangen
Completion
2023
Technology
ELOVAC®-P
Size of WWTP
350.000 PE
VandCenter Syd
Vacuum degassing with simultaneous phosphate precipitation
Goal
- Avoiding greenhouse gas emissions
- Prevention of uncontrolled struvite deposits
Scope of delivery and services
- Supply and commissioning of an ELOVAC®-P vacuum degassing system with option for integrated phosphate precipitation
- Support with mechanical, electrical and information technology integration into the existing system
Special features
- ELOVAC®-P is installed downstream a post-digestion storage tank. The degassed sludge is directly supplied to dewatering.
Client
VandCenter Syd, Denmark
Completion
2022
Technology
ELOVAC-P®
Size
960 m3/d digested sludge
Loganholme
Sustainable sewage sludge drying
Goal
- Drying of aerobically stabilized sewage sludge to a DS content of more than 90%
- Production of raw material for the carbonisation process
Scope of delivery and services
- Engineering, supply, installation and commissioning of the complete sludge drying plant
- Implementation of the sludge utilization plant in the wastewater treatment plant with optimal thermal efficiency
Special features
- Required electricity of ELODRY® ≤ 40 kWh/t H2Ovapor
- Required heat demand of ELODRY® ≤ 800 kWh/t H2Ovapor
Client
Downer / Loganholme
Completion
2022
Technology
ELODRY®
Size
600 kgDS/h
Lorsbach
Sustainable sewage sludge utilisation as a combination of sludge drying and carbonisation.
Goal
- Production of a fertilizer raw material with a high amount of plant-available phosphorus
- Savings in transport costs
Scope of delivery and services
- Engineering, supply, installation and commissioning of the complete sludge utilization plant as general contractor
- Implementation of the sludge utilization plant in the wastewater treatment plant with optimal thermal efficiency
Special features
- Required electricity of ELODRY® ≤ 40 kWh/t H2Ovapor
- Required heat demand of ELODRY® ≤ 800 kWh/t H2Ovapor
Client
Abwasserverband Main-Taunus
Completion
2020
Technology
ELODRY® & PYREG®
Size
170 kgDS/h
Provo
Vacuum degassing with simultaneous phosphate precipitation
Goal
- Prevention of uncontrolled struvite deposits
Scope of delivery and services
- Supply of an ELOVAC®-P vacuum degassing system with option for integrated phosphate precipitation
- Support with mechanical, electrical and information technology integration into the existing system
- Commissioning support (remotely)
Special features
- Supply of the plant in a sea container
Client
Provo, USA
Completion
2021
Technology
ELOVAC-P®
Size
416 m3/d digested sludge
Trutnov
ELODRY® low-temperature belt-dryer: highly efficient with lowest heat consumption
Goal
- Production of dry sludge as ideal fuel for the downstream carbonisation process
- Savings in transport costs
Scope of delivery and services
- Engineering, supply, installation and commissioning of the sludge drying plant
- Combination of the dryer with a PYREG® 500-unit for the carbonisation process
- Implementation of the dryer in the wastewater treatment plant with optimal heat efficiency
Special features
- Required electricity of ELODRY® ≤ 40 kWh/t H2Ovapor
- Required heat demand of ELODRY® ≤ 800 kWh/t H2Ovapor
- ELODRY® is especially designed for the drying of sewage sludge and significantly reduces the operation costs
Client
HST Tschechien
Completion
Juli 2020
Technology
ELODRY® & PYREG®
Size
440 kgH2Ovapor
Lingen
Energy Efficiency Upgrade with Thermal Hydrolysis and Phosphorus Precipitation
Scope
- Mechanical primary sludge thickening
- Thermal sludge disintegration (LYSOTHERM®)
- Phosphate precipitation and recovery from digested sludge (EloPhos®) with later change of operation to vacuum degassing with simultaneous phosphate precipitation in April 2019 (ELOVAC®-P)
- Centrifuge for the dewatering of digested sludge
- New CHPs with higher electrical efficiency
Technical Data
- Design capacity WWTP 195,000 PE, Actual load ca. 100.000 PE
- 1 module LYSOTHERM® with max. 15 tDS/d capacity
- ELOVAC®-P with max. 10 m³/h capacity
System & Technologies
- LYSOTHERM®
- ELOVAC®-P
- EloPhos®
Special Features
- Funded project by the German Federal Ministry for Environment, Nature Conservation, Building and Nuclear Safety under “energy efficient wastewater treatment plants”. In 2018 at the project’s conclusion, the electrical power self-supply increased from 61% to 83% and total carbon footprint of the sludge treatment was reduced by a total of 400 tons/year, or by 17% prior to the implementation. Currently, the increased gas production leads to an increased production of electrical and thermal energy. Excess heat is utilized in the local heat network.
General Data
Client
city of Lingen (EMS)
Completion
July 31, 2018
Contract value
6 million €
lingenbiosolidsconference2019.pdf Omzet.Amersfoort
Energy self-sufficient WWTP with nutrient recovery facility
Scope
- Design & Construct (UAV-gc)
- Combination of thermal pressure hydrolysis (LYSOTHERM®), nutrient recovery (Pearl®) and nitrogen reject water treatment (Demon®)
Technical Data
- Centralized sludge treatment facility 12.255 ton DS/year, 300.000 p.e.
- Production of 11 million kWh/year electricity
- Production of 900 ton/year Crystal Green® fertilizer incl. long term off-take
System & Technologies
- Mechanical thickening of primary and waste activated sludge's
- WASSTRIP® phosphate stripping process
- Sludge concentration prior to digestion with modified belt filter presses (12% DS)
- LYSOTHERM® thermal pressure hydrolysis
- CHP 3x500kWe / 550kWth
- Entire Mechanical, electrical and process automation systems and installation
- Including civil works
Special Features
- Besides fill coverage of own energy needs, the plant produces 2 million kQh surplus of electricity annually, which is sufficient to provide 600 households with green electricity during the year
General Data
Client
Waterboard Vallei en Veluwe, The Netherlands
Completion
December 2017
Contract value
EUR 11.2 million
Stand-alone sludge drying unit for drying of dewatered sewage sludge
Scope
- Stand-alone sludge drying unit for drying of dewatered sewage sludge
- Design, build, start-up & commissioning, including 16,000 hours of integral maintenance
- Sludge drying is based on proprietary ELODRY® concept for low temperature sludge drying
Technical Data
- Production capacity is 1,000 tons / year of dried sewage sludge
- ELODRY® low temperature sludge drying facility 1 x NT16
- Input is 23 - 25 % ds dewatered sewage sludge
- Sludge drying performance is > 90 % ds
- Maximum evaporation capacity is 440 kg H20 / h
System & Technologies
- Integrated design for civil, mechanical, electrical and automation works
- Low temperature belt dryer including exhaust gas treatment based on 1-step chemical scrubbing and discharge to existing bio-bed facility
- Screw conveyor systems for feeding dewatered sludge to the dryer
- Screw conveyor systems for discharge of dried sludge to disposal facility
- Disposal facility consisting of automatic loading for 2 containers
- Thermal energy is provided by a sewage gas fueled boiler and hot water circuits and recuperation facilities
- All safety (Ex) systems are included
- Integrated electrical and control system for plant autonomous operation
- Execution of all related civil works and underground piping
- Erection of the pre-fabricated plant, including all on-site mechanical and electrical installatin works
- Start-up and commissioning as well ongoing plant performance optimization
Special Features
- The system is constructed as a pre-fabricated modular plant based on 40 ft container housings
- The project includes an overall maintenance responsibility for 16,000 operating hours after final commissioning
- Project is implemented under Dutch uniform turn-key conditions UAV_GC 2005
General Data
Client
Waterboard Vallei en Veluwe
Completion
Oct. 2016
Contract value
EURO 872,290
Homburg
Sustainable sewage sludge utilisation at the Homburg wastewater treatment plant
Scope
- Deliver a low-temperature belt dryer (ELODRY®) and carbonisation unit (PYREG®), including heat recovery and utilisation
- Coordination and construction planning
Technical Data
- ELODRY® low-temperature belt dryer with extremely low demand for thermal energy, including air treatment
- Tailor-made heat recovery and utilisation concept - Excess heat of the PYREG® process is used for ELODRY® drying process
- PYREG®-plant for the decentralised recycling of sewage sludge and production of a phosphorous-containing carbonisate, including air treatment
Special Features
- With the combination of a low-temperature belt dryer by ELIQUO STULZ GmbH and a carbonisation plant by PYREG GmbH, volumes of sewage sludge are reduced by around 90 % and, at the same time, the sewage sludge is converted fully into a high-quality fertiliser raw material with a high proportion of plant-available phosphorous. The combination is a complete phosphorous recovery solution for wastewater treatment plants.
General Data
Client
The “Entsorgungsverband Saar” (EVS – Saarland Waste Disposal Association)
Completion
March 2016
Contract value
1.5 million Euro
Linz-Unkel
Innovative sewage sludge utilisation with phosphorous recovery
Scope
- Design, build, start-up & commissioning of the sludge drying and carbonisation plant, including dewatering unit
- Sludge drying is based on the ELODRY® concept for low-temperature sludge drying
- PYREG® 500 unit for the carbonization process
- Implementing the two technologies in the WWTP with optimal heat efficiency
- Waste air treatment for dryer and carbonisation unit
Technical Data
- Upgrade size: 30,000 PE
- Amount of sewage sludge: Approx. 18,000 m³/a (3-4 % DS)
- Approx. 2,800 t/a dewatered digested sludge
System & Technologies
- New Ishigaki screw press for the dewatering of the digested sewage sludge
- ELODRY® low-temperature belt dryer with extremely low demand for thermal energy, including air treatment
- Tailor-made heat recovery and utilisation concept - Excess heat of the PYREG® process is used for ELODRY® drying process
- PYREG®-plant for the decentralised recycling of sewage sludge and production of a phosphorous-containing carbonisate, including air treatment
- Screw conveyors for dewatered sludge feed to the dryer
- Screw conveyors for dry sludge to the PYREG® unit
- Screw conveyors for dry sludge to the PYREG® unit
Special Features
- With the combination of a low-temperature belt dryer by ELIQUO STULZ GmbH and a carbonisation plant by PYREG GmbH, volumes of sewage sludge are reduced by around 90 % and, at the same time, the sewage sludge is converted fully into a high-quality fertiliser raw material with a high proportion of plant-available phosphorous. The combination is a complete phosphorous recovery solution for wastewater treatment plants.
General Data
Client
Zweckverband Abwasserbeseitigung Linz-Unkel
Completion
Completion: March 2016
Contract value
Contract Value: 1.4 million Euro
WWTP Ottestad, Hias IKS
Vacuum degassing of digested sludge with ELOVAC®-P
Goal
- Avoiding greenhouse gas emissions
- Prevention of uncontrolled struvite deposits
Scope of delivery and services
- Supply of an ELOVAC®-P vacuum degassing system with option for integrated phosphate precipitation
- Support with mechanical, electrical and information technology integration into the existing system
- Commissioning support was provided remotely due to travel restrictions related to the Covid-19 pandemic
Technical Data
- Size of the Hias IKS wwtp in Ottestad: 125,000 PE
- Capacity of the ELOVAC®-P: 290 m³/d digested sludge
- The ELOVAC® is operated with or without integrated phosphate precipitation as required (ELOVAC®-P)
Special features
- The wastewater treatment plant is equipped with thermal disintegration (Cambi) - ELOVAC® thus treats disintegrated sludge
- The wastewater treatment plant is being converted to the "Hias process", a highly compact process for biological nutrient elimination. In this context, good control of internal phosphorus flows is essential.
Client
Hias IKS
Completion
December 2020
